Write a direct proportion equation that relates the money earned (y) to the hours worked (t).

15

Step-by-step explanation:

I used system of equations so to set it up I chose two points on the graph luckily this one is easy so there are some exact points (and you don't really need the system since it is a straight line and not exponential):

2x = 30;     x = 15

4x = 60 ;     x = 15

15 x (x-axis value) = y axis value

d. vertex

step-by-step explanation:

d) by the cross product property, ab^2 = bc multiplied by ad

step-by-step explanation:

we are given

in the given triangle abc

angle a is 90° and segment ad is perpendicular to segment bc

we can see that

triangle(abc) and triangle(abd) are similar because they have common side and same angle (90 degree)

so, triangles(abc) and abd are similar

since, they are similar

so, the ratio of their sides must be equal

we get

now, we can cross multiply

and we get

so, this could be step to prove it